διαφανήςdiaphanḗs

transparent: Revelation 21:21.

Greek (New Testament) · G1307

Same root

διάdiá · G1223through (in very wide applications, local, causal, or occasional)
φαίνωphaínō · G5316to lighten (shine), i.e. show (transitive or intransitive, literal or figurative)

Source: G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922), public domain.